Company Filing History:

9 out of 42,485

Hitachi, Ltd.

patents

3 out of 23

Hitachi Process Computer Engineering, Inc.

patents

3 out of 832,680

Other

patents

where one patent can have more than one assignee

Years Active: 1976-2005

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12 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 6879358 - LCD and projection type display using same (2005-04-12),

2. 6693691 - LCD and projection type display using same (2004-02-17),

3. 6686976 - Liquid crystal light valve and projection type display using same (2004-02-03),

4. 6437842 - LCD and projection type display using three metalization layers and black layer (2002-08-20),

5. 6034749 - Light insensitive type active matrix with P and N regions connected to a (2000-03-07),

6. 5461501 - Liquid crystal substrate having 3 metal layers with slits offset to (1995-10-24),

7. 4640721 - Method of forming bipolar transistors with graft base regions (1987-02-03),

8. 4599635 - Semiconductor integrated circuit device and method of producing same (1986-07-08),

9. 4260430 - Method of manufacturing a semiconductor device (1981-04-07),

10. 4008107 - Method of manufacturing semiconductor devices with local oxidation of (1977-02-15),

11. 3977920 - Method of fabricating semiconductor device using at least two sorts of (1976-08-31),

12. 3933540 - Method of manufacturing semiconductor device (1976-01-20),

Title: **Akio Hayasaka: Innovator in Liquid Crystal Technology**

Introduction

Akio Hayasaka, hailing from Higashiyamato, Japan, is a remarkable inventor known for his contributions to liquid crystal display technologies. With a prolific portfolio of 12 patents, he has made significant strides in the field of optical devices.

Latest Patents

One of Akio Hayasaka's latest innovations is a patent for an LCD and projection type display utilizing a unique liquid crystal light valve. This invention incorporates a semiconductor substrate designed with a matrix of switching elements. The technology features multiple metal layers separated by insulating layers, ensuring optimal performance. The configuration of these layers includes first, second, and third metal layers, each divided into components by slits. An opposite substrate accommodates an electrode, facilitating the interaction with liquid crystals filling the interval between the electrode and the third metal layer. This inventive approach enhances the functionality and efficiency of LCD technologies, serving as a testament to his expertise.

Career Highlights

Akio Hayasaka has contributed to major corporations, including Hitachi, Ltd. and Hitachi Process Computer Engineering, Inc. Through his tenure at these companies, he has been instrumental in advancing technologies that have revolutionized the industry. His dedication to innovation has positioned him as a key figure in the realm of display technology.

Collaborations

Throughout his career, Hayasaka has collaborated with other esteemed professionals in the field. Notably, he has worked alongside Hideo Sato and Minoru Hoshino, fostering an environment of creativity and innovation. These collaborations have not only enhanced his work but also contributed to groundbreaking advancements in liquid crystal technologies.

Conclusion

Akio Hayasaka's inventive spirit and dedication to innovation have made a lasting impact in the field of liquid crystal display technology. His patents, including recent advancements in liquid crystal light valve systems, exemplify his role as a pioneering inventor. With continued collaboration and research, he remains a significant contributor to the future of optical devices and display technologies.

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